US1042876A - Converter. - Google Patents

Description

A. F. s. BLAOKWO0D. CONVERTER.

APPLICATION FILED JULY 28,1910. 1,042 876, Patented Oct. 29, 1912.

s SHEETS-SHEET 1.

A.- F. S. BLAOKWOOD.

CONVERTER.

APPLICATION FILED JULY 28, 1910.

1 j 42; 7 Patented Oct. 29, 1912.

a SKEETSSHEBT 2;

Z flVjA i 0/0 Patnted 00a. 29, 1912:

A. F. S. BLAOKWOOD.

CONVERTER APPLICATION FILED JULY ZB, 1010 airnn'r CONVERTER.

ftpecification of Letters Patent. I

Patented Oct 29, 1912,.

a maun filed July as, 1910. Serial a 574,404.

To all whom it may concern:

Be it known that I, ALEXANDER F. S. Bnaonwoon, a citizen of the United States, residing at Detroit, in the county of Wayne, State of Michigan, have invented certain new and useful improvements in Converters, of which the following is a description, reference being had to the accompanying drawings, forming a part hereof.

My invention relates to Bessemer cone verters of thetype in which) provision is made for readily separating'the converter to afford convenient access to the interior thereof for the purpose of repairing the lining with which such converters are provided; and the objects of my invention are to provide a separable converter which may be readily'separated and which requires no mechanism for efl'ecting the separation of the parts thereofother than such as ordinarily forms a part of foundry equipment; to provide a separable converter in which the plane upon which the parts are separated passes through the locality at wlnch the maximum wear upon the lining of the con: verter occurs, so thatythe portions of the lining the more likely. to need repairs will be close to the ends of the parts after they have been separated; and to provide such further improvements in and relating to separable converters as'will be hereina t closed and claimed.

\Vith the above enumerated objects in view my invention consists in the improved separable Bessemer converter illustrated in the accompanying drawings, described in the following specification, and particularly claimed in the clauses of the concluding claim; and in such obvious modifications ot' the converter illustrated and described. as will be obvious to one skilled in the art to which the invention relates.

In the drawings comprising three sheets: Figure 1 is a view showing a side elevation of my improved converter, one of the trunnions however being sectioned to SllO'VldwtllQ-w air supply passage'extending therethrough;

Fig. 2 1s a plan view of the lower part of the converter, the upper part being removed. Fig. 3 is a View showing a section taken upon a vertical plane indicated by the line 3 3 Fig. 2.

My improved-converter is made up of two parts, the lower part 1 being supported by a trunnion ring 3 rotatable in bearings at the upper ends'of the pedestals 4: while the uphave become damaged and to need repairs that 1s, 1n slole blown converters the zone er disper part 2 is separable from the lower part so that it may be readily lifted therefrom by means-of a crane, to WlllCll end it is provided with a plurality of lugs 5 to be engaged by lifting chains, it being thus obvious that no mechanism other-than a crane, which is a common and necessary. part of foundry .equlpment, is necessary to effect these-para:

tion of the parts. The featureof ready sep 3 aration of the parts by means of 'a crane re suits from the fact that. the plane upon which the parts are separable passes aht ve' the trunnion ring, thus dispensing with such special apparatus as is commonly provided for manipulating the lower part ofsuch separable'converters as are separable upon a plane located below the't'runnion ring; and the location of the lane of separation above the trunnion ring urt-herinore secures a sep aration of the parts at the annular belt or zone at which the converter lining is subjected to thefmaximum amount 0t wear and;

at the place where it is the more likely to above the plane of the twyers which is in line with or sli htly above the direction which the blast rom the twyers takes as it passes through the molten metal land in which the heat of combustion .is highest; from which it will be obvious that latter the parts-have been separated the portions of the lining'morelikely to need repairs will be at or near the ends of the parts and will consequently be readily accessible for the purpose of repair. Theplane upon which the two parts are separated being above the.

trunnion ring as stated, also coincides u 91'! proximately with the upper limit of the trunnion ring, as when the several'p'arts are designed and proportioned as contemplated by me a plane so located will divide the converter at just about the place where the maximum amount of wear is found tooceur.

This is found to be about seventeeninches above the center line of the twyersjin a one ton converter. The dotted lines 6, Figs. 2 and 3,j"1ndicate approximately the outline of thehmng of 195 the converter.

7 is the air supply .passa e extending through one of the trunnions a ter which the air passes through a conduit 8 and into the converter through one or more passages gr 110 twyers 9.

10 1s a gear des1gned to be engaged by a ends thereof are slotted to receive transverse worm whereby the converter may be rotated upon its trunnions as is common in Bessemer converters. r

The trunnion ring 3 is preferably formed in sections as shown, and means are provided for securing the upper and lower parts of the converter together; the same being shown as comprising a plurality of shackles 11 pivotally secured to the trunnion ring at their lower ends, while the upper permit its lining to be repaired as will be understood. 4

Such being the construction of my improved converter, it will be obvious that after removing the keys 12 and swinging the shackles 11 free from. the brackets 13 the upper part 2 of the converter may be lifted from the lower part 1 by means of a crane and chains engaging the lugs 5 and the same placed upon suitable supports, the trunnions 14 of the upper part serving as supports for the same and permitting it to be moved into such a position, angularly, as to enable the lining thereof to be readily repaired. The lower part 1 may obviously be likewise rotated upon its trunnions to bring it in proper position to enable repairs to be made to the lining. \Vhen thus separated. the portions of the lining of the two parts the more likely to need repairs are readily accessible as above explained; and the fact that the workman who is to make the repairs does not have to enter the converter to reach the locality where repairs are to be made, nor to reach far thereinto, cnablesre pairs to be made upon a converter, when constructed in accordance with my invention, so hot as to positively preclude the entry of a person into the interiorthereof as would be necessary if the portionpf the lining to be repaired was removed from the open end of the part to be repaired, it being 5 possible to make repairs upon the liningof i my in'lproved converter after the same has been given but a few hours inwhich to cool wvhereas from lif ,.n to eighteen hours are i interns commonly required for a converter to become cool enough for a workman to enter into it to repair the lining.

With a converter constructed in accord-\ ance with my invention as above di'sclosedl I am able to operate with a single converter where two or more have heretofore been required for the reason that repairs to the converter lining may be made without waiting for the converter to become cool; whereas in pl ats using converters in which it is necessary to enter into the interior thereof in order to repair the lining, the converters have to be given many times as long to cool, and a second converter will be necessary in order to maintain a continuous operation of the plant, before the first will have had time" to cool and be repaired. In .such plants it has heretofore been necessary to have at best two, and often more converters, the individual, converters being used in suc c-ession.

Having thus disclosed my invention and explained the advantages thereof, 1 claim and desire to secure by Letters Patent 1. A converter comprising a lower lined portion having twyers arranged to deliver air through the side, means for supporting and swinging the said lower portion; an upper lined portion detachably secured to the lower portion, the plane of juncture between the upper and lower portion coinciding with the plane of greatest wear of the lining of the converter which in a one ton converter is about seventeen inches above the center of the twyers.

2. A converter comprising a lower lined portion having twyer s arranged to deliver air through side, means for supporting and swinging the said lower portion, an upper portion, detachably secured to lower portion, the plane of juncture between the upper and lower portion coinciding with the plane of gre tst wear of the lining of the converter, which in a one ton converter is about seventeen inches above the center of the twyers, means whereby the upper portion may be gripped to be removed, and trunnions secured to the upper portion whereby the same may be suitably 'n'iountcd after being detached and removed from the lower portion.

This specification signed and witneswd this twenty seventh day of July A. 1). 19h).

ALEXANDER l. S'llltlilNtl lilnlOKlYOUl). in the presence of- R. F. ll'm'rmmwnx, JESSE l Mex nus.

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